Drilling machine with arbor frame



June 12, 1928. 1,673,745 G. W. GAGE DRILLING MACHINE WITH ARBOR FRAME Filed June 7, 1935 INVENTOR WITNESS- ATTORNEY Patented June 12, 1928.

UNITED STATES GEORGE WELLINGTON GAGE, OE PARNASSUS, PENNSYLVANIA.

DB ILLING MACHINE WITH ARBOR FRAME.

Application filed June 7,

This invention relates to a drilling device, the general object of the invention being to provide an arbor frame formed with a detachable section for permitting a solid crank shaft to be journaled in the frame, the frame rotatably supporting a shaft which has a gear thereon meshing with the gear on the crank shaft, with means for attaching a bit or tool to the shaft in the frame.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claim.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is an elevation of the device.

Figure 2 is a section on line 22 of Fig ure 1.

In these views, 1 indicates the arbor frame which is formed with a removable part 2 held to the frame by the bolts 3. By removing this part 2, a double crank shaft at can be placed in the boxing formed by the two parts of the frame. A gear 5 is carried by the crank shaft and this gear meshes with a gear 6 carried by a shaft 7 journaled in the frame, the outer end of the shaft 7 being fitted to receive the bit or other tool. The frame is provided with a boss which extends into an opening formed in the frame, said boss having a bore therein which is in alignment with a bore passing through the other part of the body and the shaft 7 is journaled in these bores with the gear 6 arranged in the opening. A stud 8 is threaded in a boss formed on the part 2 and a tubular stem 9 is adjustably connected with the stud by the bolt 10. A breast plate 11 is fastened to the 1926. Serial No. 114,372.

stem. A spring 1-2 is mounted on the shaft 4: and is held under tension by a collar 13 held to the shaft by the set screw let. Handles 15 are rotatably connected to the ends of the crank shaft by the nuts 16.

From the foregoing, it will be seen that I have provided a simple two-part frame for rotatably supporting a double crank shaft of solid construction and a second shaft with gears carried by the shafts and meshing with each other whereby the movement of the crank shaft will be communicated to the other shaft. The spring 12 will hold the gears in mesh and the breast plate can be adjusted, as desired.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claim.

What I claim is A drilling machine of the class described comprising a frame having an opening therein, a boss extending into the opening and having a bore therein, a bore in the opposite part of the frame having its inner end communicating with the opening, the bores be ing in alignment with each other, a shaft journaled in said bores, a gear fastened to that part of the shaft which passes through the opening, said frame having a recess therein, a crank shaft journaled in the inner part of the recess, a part filling said recess for holding the shaft in place, means for holding said part in the recess, a gear on the crank shaft meshing with the before mentioned gear and a breast plate connected with the frame.

In testimony whereof I affix my signature.

GEORGE WELLINGTON GAGE. 

